Type-writing machine.



Nlo. 845,066'. A PATENTED PEB.26,V190'7. P. J. DYETT.

TYPBWRITING MACHINE. APPLIU'ATION FILED JULY16.'1904.

No. 845,066 PATENTBD PEB. 26, `1907.

IP. I.' DYBTT. TYPE WRITING MACHINE.

APPLICATION FILED JULY 16,1904.

2 SHEETS-SHEET 2.

ZZHNESSESI A 0/ INVTR @and ' AII-ORNIYS` No. sfiaoee..

TOaJZZ-v whom, it una!! concern:

TYPE-WRITING MACHINE..`

Be .it known that I, FRANK J. DYETT, of

i Ilion,'in the county of Herkimer and State of New York, haveinvented'a certain new and useful Type-V'Vriting Machine, of which thefollowing is a specification.

My invention relates to escapement `mechanism for type-writing`machines, and particularly-to the construction and4 arrangelment' ofthedetents 'coacting with the escapement ratchet-Wheel-and of the means for`supporting and'operating the detents; and vsaid invention has for itsobject the produc- `tion of a mechanism for the desired use which Fig.1.

in section, of v in Fig. 1, the pivoted detent being illustrated; Figs.6 and-7 are elevations of the oscillating member carryingis particularlysimple 1n construction and highly efficient in operation.

To this end the invention consists in the combination, construction, andarrange- -ment of theparts hereinafter set forth, and

pointed out in the claims. y

In describing 4this invention reference is had tothe accompanyingdrawings, in which like characters designate .corresponding parts in allthe views'.

' Figs. 1 and 2 are respectively elevation and plan of a portio'nof atype-writing machine v .equippedwith onev embodiment of my invention.Fig. 3isa sectional view on line A A,

lportions of the devices' shown in diii'erent positions.'`

. the .detents and the pivoted detent.

" plate and '1 1 is a fragmentary part of the top plate orframe'memberof a 'type-Writing machine,

and 2'is a vertically-arranged frame mem-,

ber, here shown as a postor pillar-suitabb7 xed, as by screws 3, Fig.l2., inga slot 4 inthe plate 1 and projecting above and below saidlprovided' with a laterally-extending offset portion 5 beneath the plate1.

6 is a shaft which is journal'ed in an' open.- ing extending throughopposite surfaces of the'top or head'of the frame member 2 and projects.beyond. said surfaces, its proj ecting ends being respectively providedwith a -pmion 7 and an escapement ratchet-wheel 8.

The pinion 7 engages a rakbar (not illustratcd) 'on the carriage of thetype-writingl machine, normally prevents the carriage from being movedby a, motor, as a spring, tending to advance the carriage for feeding4the papel` thereon, andv when rotatedstep by step permits the carriage,to ladvance correspond- Specicaton lof Letters Patent.- Applioationfiled Julyl, 1904. Serial No. 216,790

F'gs. 4y and 5 arc elevations, partlyof aline, as 16, l,axis of the'escapement-Wheel 8 at substantially a right angle to `-a line,

detent 11.

r-capement-wheel 8 yand pivoted at onev Patented Feb. 26,1907.

ingly. *The ratchet-Wheel 8 controlsthe rotai-ion ofthe pinion 7 as inthe common confV struction of escapement mechanism and is in, turncontrolled .by moans interposed betweerf said wheel 8 and the keyboardof the. typewriting machine.

ln my invention the means for controlling 'the rotation of theratchet-wheel 8 preferably comprises a rock-shaft 9, joulnaled in theoii'set portion 5 of the frame member 2 and extending parallel to theshaft 6 at one side of the vertical plane thereof, an oscillating member10 fixed to oneend of the shaft 9, opposing detents 1l 12, carried bythe member 10, 'an arm'13,iixed to the other end of the rock-shaft 9,and means for operating the arm 13.

The oscillating member 1() is illustrated asA having angularly-arrangedportions, one being substantially horizontal and pivoted at its free endby a support for-said ing extended upwardly the rock-shaft 9, whichforms member, and the other beat one side of the plane ofthe'escapement-wheel 8 and provided in. proximity to its free lend withopposite upwardly-diverging arms or branches 14 15 ,arrangedsubstantially concentric with the escapementewheel 8 and thepivoteddevtent 12. It thus follows that the axis of the oscillating member y10is arranged at one side Fig. 4, extending through the as 17, passingthrough said axis and the engaging face of the The arm 14 is formed nearits upper or free end with an offset portion 18 movable in the plane ofthe wheel 8 and having its edge opposed to said wheel 'provided with afixed lateral extension forming the detent 11. The uppervor free end ofthe arm is provided with a lateral extension 19 in the plane of theescapement-wheel 8.1 Said Aoscillating member l0 also carries stopsspaced a distance apart, one, 20, being arranged at the base of the arm14 and the other, 21, being supported by the lateral extension 19andadjustable therein toward and from the stop 20.

The detent 12 is' shown as pivoted substantially in alinement -with theaxis -o-f the es-` capemen't-wheel 8 'to the upper or free end of 1 apartof't'he oscillating member 10, arranged substantially midway'-between .the branches 14 15 and as comprising a radial arm 'interposedbetween the member 1 and the. ,e, 'en 2 IOO 'tent comprising aradial armpivoted to the -part arranged betweenlsaid branches7 and a posedbetWeen-'nsaidpartand the opposing side of the escapexnent-Wheel, andthe segmental head having a detent for cooperating with theescapement-Wheel substantially as and for the purpose specified.

2. In an escapement mechanism for type- Writing'machines, thecombination with an escapementwheel; of an oscillating member arrangedat one side of the plane of the escapement-Wheel and comprising oppositebranches and a part arranged substantially midway between the branches,oneof the branches having an oilset portion extending into the plane ofthe escape1nent-WheeL a detent provided on the offset portion forcoperating With the escapernent-wheel, anda# 'second detent-comprisinga'radial arm'piyoted to the part arranged between said branches, and asegmental head slidably engaging the other o.f 'saidbranches, the radialarm being interposedjbeitween said part and the opposing side ofellescapementfwheel, and the segmental head having an odset por- .tionextended into the 1plane of the escapey as and for the vpurf posesetfforth.V

3: In' aneseapement mechanism for type- Writing machines, thecombination With. an `eseapement-Wheel; of an oscillating memberprovided With a branch arranged substantially concentric with theescapement= Wheel, means for .oscillating said member, and detentscarried by the oscillating member and cooperating With the ,escapement-Wheel, one detent being pivoted to the oscily lating membersubstantially in alinement With the a'Xis of the escapement-Wheel andcomprising a radial arm arranged at one side of said Wheel, and providedwith a segmental head opposed to the concentric.branch of theoscillating member .and having one end formed with an oiiset portionmovable in the plane of the eseapemcnt-vf'hcel said oil`set portionforming the part of said detent engaging the escapemcnt-wlioel,substantially as and for the purpose described.

4. .In an -eseapement .mechanism for type- Writing machines, thecombination with an escapemcnt-Wheel; of an oscillating member having aportion thereof movable at one side of the' plane ol. theescapement-wheel, and providedwith. opposing branches arrangedsubstantially concentric to the es capement-Wheel, one branch having anoil'- set portion movable inthe plane of the escapement-Wheel and theother having a lab,

eral extension in said plane, detents coacting with theescapement-Wheel, one detent being xed to said oilset portion and theother comprising a radial arm at one side of the esca ement-.Wheelpivotd at one end to the oscillating member substantially in alinementWith the axisof said wheel7 and a segmental head opposed to the branchhaving a lateral extension and formed at one end With an offset portionmovable 1n the plane of theI escapement-Wheel.toward and from said eX-.

tension and provided With the face'of said f detent engaging' theescapement-Wheeb and a spring for moving the pivotedv detent to- Wardsaid extension., substantially as and .for the purpose described. I

` In testimony whereof I have hereunto 'signed my name, in the .presenceof two attesting witnesses, at Ilion7 in the county of .Herkimery in theState of New York, this 1 1th dayofJuly,19'04. Ml, y, Y* ,A

1 Y FRN'K-J-Vn'i/nrr.

Witnesses: I ii GEO. H C. STONE,

PETER MARHAYER.

